Dowsil 688 - Weathershield

Dowsil® 688 Silicone Glazing and Cladding Sealant



  • - Adheres to a wide range of building materials and finishes

  • Neutral cure; will not corrode galvanized / zinc-coated steel or attack concrete

  • Excellent resistance to weathering, ultra-violet radiation, vibration, moisture, ozone, temperature extremes, airborne pollutants, cleaning detergents and many solvents

  • Long life reliability

  • Meets International Standard such

    as CNS 8903, BS 5889, BS EN

    ISO11600 20LM

  • - Strong elastic seal capable of

    withstanding movements up to

    ±25% of original joint width

  • Non-slumping; can be used in

    vertical and overhead joints

  • Easy to use one part, no mixing


  • - Can be applied in any season